Is a 30% increase in power possible with CAI and an Exhaust?

[Novice1]

Just out of interest re tighe cams. I did speak to them and as IRED5 states they did seem uninterested.

I, did however buy a set of tighe 805 cams with cam gears from gary stewart. $1,000 fitted. Very happy with them.

And before someone asks me duration, lift? No idea.
Cheers Novice1 aka Ron

[RG.net]

I thought you could have your cams done to 805 spec for $500 or buy new bullets for $1000

correct.
But when I spoke to someone at Tighe, they made me feel like I was asking them to clean my toilet for me. "Disinterested" is the word I'm looking for.

$500 for them to build-up standard cams with welds ..... hmmmm.... no thanks.

i know what you mean, i was emailing them for weeks and they just gave me simple 1 sentence answers. not very perfessional in my opinion, ended up taking a week to get what i wanted out of them, i'm glad i wasn't the one that originally purchased the cams from them.

[RG.net]

Obviously you have done your homework, wasn't trying to denigrate the SH cams but occasionally people go ahead and buy things for almost new price so was just a heads up.

I will be most interested to hear your outcomes, should be really good because mine is just a mild set up well(I think) tuned

I started off with a lean running standard engine and put a Malpassi fuel reulator on and it made little difference so I was partially trying to correct that issue with the MIcrotechs adjustability ,and then thought if I am going to get a dynotune why not try the Tighe cams which had good reviews.

I think I will fit a new fuel pump and have been toying with replacing the XForce extractors with the set of Racing Beat 4:1's that I have so will have to do that and the pump before a retune.I have a bit of a fear that I might do all that and go backwards in terms of drivability!!!

Good luck with your project please keep posting as you go along.

Peter.

yeah, i do ALOT of research before i purchase something, i do know what you mean though and no offence taken in any way. i think my setup is a little on the extreme side, but i just want to do it first, do it right and get maximum use out of the head. i'm intrested to hear if you do fit the rb 4-1's as that is what i plan on running, according to the reviews they are just as good as a 4-2-1 in terms of driveability but make more top end power.

thank you for your kind words, i have a page in my garage section, be sure to suscribe as i actively post in there.

[FMS01]

[/quote]

i'm intrested to hear if you do fit the rb 4-1's as that is what i plan on running, according to the reviews they are just as good as a 4-2-1 in terms of driveability but make more top end power.

[/quote]

We have 4-2-1 on our race engine (2F BP), we have a set of 4-1 (not sure what brand they are) which make more HP up top (3 FWhp more in the last 700RPM) but there's a BIG torque dip around 4000RPM. Area under the curve is bigger for our engine with the 4-2-1's.

Cheers,
Julian

[RG.net]

i'm intrested to hear if you do fit the rb 4-1's as that is what i plan on running, according to the reviews they are just as good as a 4-2-1 in terms of driveability but make more top end power.

[/quote]

We have 4-2-1 on our race engine (2F BP), we have a set of 4-1 (not sure what brand they are) which make more HP up top (3 FWhp more in the last 700RPM) but there's a BIG torque dip around 4000RPM. Area under the curve is bigger for our engine with the 4-2-1's.

Cheers,
Julian[/quote]

as stated, the rb 4-1 was designed to surpass their previous 4-2-1 setup, they hold the midrange of a conventional 4-2-1 and have more top end too. maybe you could find out the brand of those 4-1's you have, and what brand your 4-2-1's are.

[Steampunk]

I have Apexi 4-1 with the primary pipes meeting just before where 4-2-1 would have their secondaries meeting to join into tertiaries. Does that make sense?

Noticeable lack of low-end torque up till 2,500RPM; but after that it revs like a 4-2-1 system, and feels freer than a 4-2-1 after 5,500RPM or so.

Dynoed not long ago and there doesn't seem to be any substantial torque dip down low.

Dont' forget to install a flexi joint before the cat!

[Rotary]

Nice Dyno graph Peter, love the Torque peak between 6k-6.5k and 86% of peak torque still available at 7500rpm, must feel like it want's to go well beyond 8K.
It's interesting how there is a peak section around 4k-4.5k then another stronger peak later on, almost like a vtec, and more so than a VICS system. of the top of my head na8 doesn't have a variable intake chamber system Does it? and are you still running the NA8 heads and Intake?

I thought there would be plently left to get in your 1/4 time, was that Air Temp or Track Temp either way it looked like a warm track with a much improvable 60ft time, so with grippy tyres 60f- 2.0 and cooler weather should be edging a 14s pass.
It would be interesting now with the 6speed i think that alone will help with the 60ft's and could dip below a 2.0 with grippy tyres and the LSD.
But i Think your setup is calling for a Supercharger , it would work superbly with the Head and exhaust flows you have going

Matt

[Rotary]

pcmx5

what is this crystal mod you speak of? i would like my n/a set up to run @ 8000rpm, and the greddy emanage is unable to do this.

won't go beyond 7350rpm until you disable the Immobiliser
Matt

[RG.net]

pcmx5

what is this crystal mod you speak of? i would like my n/a set up to run @ 8000rpm, and the greddy emanage is unable to do this.

won't go beyond 7350rpm until you disable the Immobiliser
Matt

wha, hows that work? there was a writeup about this sometime ago wasnt there? do you happen to have any links etc?

[Fatty]

hevn, do a search on "crystal" in the engines section and you should find what you are looking for. look for a thread with posts by stantheman and matty.

[RG.net]

hevn, do a search on "crystal" in the engines section and you should find what you are looking for. look for a thread with posts by stantheman and matty.

thank you fatty, i shall

[pcmx5]

[quote="? and are you still running the NA8 heads and Intake?

I thought there would be plently left to get in your 1/4 time, was that Air Temp or Track Temp either way it looked like a warm track with a much improvable 60ft time, so with grippy tyres 60f- 2.0 and cooler weather should be edging a 14s pass.
Matt[/quote]

Still stock NA heads etc.; that was air temp, don't have track temp..My first run was the fastest but I did have a better 60ft time on another run and then hit 5th instead of 3rd!!!

.Supercharger is just too much cost etc for me, I really don't use the power I have now that often. probably more interested in drivability and reasonable power.

Peter.

[Rotary]

Gotta love those tight gates, Exactly what I did last time out, final run with the temp down to 8'C primed to do my quickest run with a best launch of 2.17, i hit between 3rd n 5th, then ended up in 5th no margin for error in dragracing especially when you get 3 runs in 3 hours.
Like to hear how you go with the 6speed if you get out there again
Matt