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crisisjez
7,492 posts
74 months
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philcerb said: If 1 piston disintegrated how would this destroy the rest and the blower.I have ran/built 6 engines with blowers over the years Really! Its pretty obvious how, and quite commonplace too. Welcome to the forum btw, is this your first post here? philcerb said: mark is very good he built and mapped my engine and sorts iva emissions for a lot of others. Go away, this thread isn't going to be turned into a b  hfest.
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stevieturbo
8,363 posts
116 months
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crisisjez said: Nice to know there are choices out there for builders, but isn't John's expertise drag racing? Drag racing requires building power. And power is what we want in the first instance. If you understand how to do that and basic tuning principals the engine or car becomes almost irrelevant. Although some platforms will have their own good/bad points.
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crisisjez
7,492 posts
74 months
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stevieturbo said: crisisjez said:
Nice to know there are choices out there for builders, but isn't John's expertise drag racing? Drag racing requires building power. And power is what we want in the first instance. If you understand how to do that and basic tuning principals the engine or car becomes almost irrelevant. Although some platforms will have their own good/bad points. Agreed, John is a quite obvoiusly a master at building drag race and high horsepower engines and has proven that beyond doubt.(although he, like everyone else has had his challenges too) But didn't even you once say that there are different factors to consider on extended runs over tha 1/4 mile when discussing the first TR and also FT that you attended.
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philcerb
83 posts
76 months
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CRISISJEZ this is a open forum all i have done is ask a question and make a comment.Sorry i have a opinion,never mind you will be a big boy one day.
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007 VXR
51,380 posts
56 months
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stevieturbo
8,363 posts
116 months
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crisisjez said: Agreed, John is a quite obvoiusly a master at building drag race and high horsepower engines and has proven that beyond doubt.(although he, like everyone else has had his challenges too)
But didn't even you once say that there are different factors to consider on extended runs over tha 1/4 mile when discussing the first TR and also FT that you attended.
Of course there are. Primarily gearing and safe mixtures, charge cooling and timing. The same things that will make any engine run safe at high loads. But a 20 second run isnt that much of a huge ask compared to a 10 second run. The same basic principals apply and have been well covered. Of course for short durations you can maybe push a little bit harder. But in some ways the distance can help, as it allows more time from heat soak, to cool the intake temps as you have lots of airflow. I'm sure he has dynoed engines at full load for much longer than 10 seconds. But it would be totally wrong to suggest that because a car is more dedicated to drag racing, it cannot survive more than a few seconds at full throttle.
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eliot
5,321 posts
123 months
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The interesting point with John Sleath is that he has a engine dyno and a rolling road dyno. So you can get a decent mapping job done before you even drive out the workshop.
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shelbyrip
23 posts
16 months
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Theres very few with johns credentials, that Audi of his hasn't had the engine apart for yrs and runs 193 mph in 1320ft in just over 7.6 secs,tell me there's no stress on that engine then.
Proof is in the pudding.
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ArnieVXR
Original Poster
1,040 posts
52 months
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crisisjez said: but isn't John's expertise drag racing? John's pretty good at a lot of things. Powerful engines that last are a pre-requisite for most forms of motorsport. I count 15 engines on his websites alone that run over 800hp, with quite a few over 1000hp. I think the most powerful engine he's put together ran 1680hp (which is around 2000 of your American hp). And his dyno attaches to your flywheel and doesn't flatter your engine (or ego). Not bad for a guy who lives on a farm and works in a barn. While many of his engines are used in dragsters, you'll see that he's worked on track cars, street cars (including a few Monaros) and classics. The Jensen owners are pretty fond of him. So John is famous for running dragsters. He also runs an Ultima, which is pretty fast round corners. And as for the standing mile, his Audi will hit 200mph in just over the quarter, so I guess the next 3/4 mile would be quite dull. 
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ArnieVXR
Original Poster
1,040 posts
52 months
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crisisjez said: Go away, this thread isn't going to be turned into a b....fest That's a bit mean. philcerb looks like a genuine, long-term user of Pistonheads, who happens to think Mark does a good job. I thought we were a friendly bunch on the Monaro forum? 
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crisisjez
7,492 posts
74 months
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philcerb said: CRISISJEZ this is a open forum all i have done is ask a question and make a comment.Sorry i have a opinion,never mind you will be a big boy one day. I think what you were trying to do was too obvious 
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Boosted LS1
13,450 posts
129 months
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liam1986 said: the only point that is surprising is the last one.
but i would suspect you took that from a US supplier? if your buying it from a UK supplier i can't see that point being included. Yes, obviously the UK provider will provide a better warranty then the one they get from The US supplier, lol. That'll be ok then
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crisisjez
7,492 posts
74 months
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ArnieVXR said: crisisjez said: Go away, this thread isn't going to be turned into a b....fest That's a bit mean. philcerb looks like a genuine, long-term user of Pistonheads, who happens to think Mark does a good job. I thought we were a friendly bunch on the Monaro forum? Really, 11odd posts in the last 12 months, none of them on the HSV forum and his first ever on this thread. I wonder why?
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crisisjez
7,492 posts
74 months
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ArnieVXR said: crisisjez said: but isn't John's expertise drag racing? John's pretty good at a lot of things. Powerful engines that last are a pre-requisite for most forms of motorsport. I count 15 engines on his websites alone that run over 800hp, with quite a few over 1000hp. I think the most powerful engine he's put together ran 1680hp (which is around 2000 of your American hp). And his dyno attaches to your flywheel and doesn't flatter your engine (or ego). Not bad for a guy who lives on a farm and works in a barn. While many of his engines are used in dragsters, you'll see that he's worked on track cars, street cars (including a few Monaros) and classics. The Jensen owners are pretty fond of him. So John is famous for running dragsters. He also runs an Ultima, which is pretty fast round corners. And as for the standing mile, his Audi will hit 200mph in just over the quarter, so I guess the next 3/4 mile would be quite dull. Lets hope we see more of his creations on here then
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philcerb
83 posts
76 months
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I have run and built(5)different blower motors rover,jag,bmw,s.b.chevy.At this time i am running 3 toys 1/ls7,1/548ci big block&1/5lt rover all n/a and all i did was make a comment about a engine and what could be causeing your problems.I am reading this forum for info as i am thinking about blowing my ls7.I do not want to make any more silly mistakes.
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stick100
5,359 posts
37 months
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philcerb said: I have run and built(5)different blower motors rover,jag,bmw,s.b.chevy.At this time i am running 3 toys 1/ls7,1/548ci big block&1/5lt rover all n/a and all i did was make a comment about a engine and what could be causeing your problems.I am reading this forum for info as i am thinking about blowing my ls7.I do not want to make any more silly mistakes. too be fare mate you had built 6 dirrerent engine earlier this is by no means that john doesn't know his stuff that audi of his is a monster i have seen alot of cars he's built and they all work well as a engine builder/tuner he knows his stuff
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ArnieVXR
Original Poster
1,040 posts
52 months
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philcerb said: I have run and built(5)different blower motors rover,jag,bmw,s.b.chevy.At this time i am running 3 toys 1/ls7,1/548ci big block&1/5lt rover all n/a and all i did was make a comment about a engine and what could be causeing your problems.I am reading this forum for info as i am thinking about blowing my ls7.I do not want to make any more silly mistakes. Hello Phil, Welcome to the forum. We're normally a friendly bunch, with a wide variety of opinions on how best the put an engine, etc together. This normally makes for lively discussion... If standard, your LS7 will be running weaker, non-forged pistons. I imagine you'll be looking to change these? Sounds like an interesting project. What's it in and what's your target? Arnie
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ARAF
11,559 posts
92 months
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Boosted LS1 said: liam1986 said: the only point that is surprising is the last one.
but i would suspect you took that from a US supplier? if your buying it from a UK supplier i can't see that point being included. Yes, obviously the UK provider will provide a better warranty then the one they get from The US supplier, lol. That'll be ok then I got a years warranty with my engine.
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stick100
5,359 posts
37 months
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ARAF said: I got a years warranty with my engine. they never seen you trying to get 5th gear then 
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ARAF
11,559 posts
92 months
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stick100 said: ARAF said: I got a years warranty with my engine. they never seen you trying to get 5th gear then If they had, they may have put in a specific exclusion. 
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